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Low Carb Lemon Butter Cod

< 1 min read

This Lemon Butter Baked Cod is a rich, buttery dish that's quick to prepare, offering a heart-healthy blend of omega-3s and protein. Perfect for a low-carb, diabetes-friendly dinner.

Prep Time

5 mins

Cook Time

20 mins

Meal Type

Dinner

Servings

2

Carbs

4.7 g

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Why you'll love this recipe:

  • Heart-Healthy: Packed with omega-3 fatty acids that support heart health.
  • Quick and Easy: Ready in under 30 minutes—perfect for busy nights.
  • Low-Carb & Diabetes-Friendly: Ideal for those managing blood sugar levels.
  • Flavorful: A zesty lemon butter sauce adds richness without the fuss.
  • Customisable: Add your favourite fresh veg for a complete meal.

Key ingredients:

Cod fillets: 

A great source of lean protein and omega-3 fatty acids, essential for muscle and heart health.

Lemon: 

Adds a zesty kick while providing vitamin C to support the immune system.

Butter: 

Rich in healthy fats, butter adds flavour and enhances the dish’s creamy texture.

Paprika:

 Smoked paprika brings a deep, earthy flavour that complements the lemony sauce.

Tomatoes: 

Low in carbs and packed with antioxidants, tomatoes provide a burst of sweetness and nutrition.

Parsley: 

Fresh parsley is loaded with vitamins A, C, and K, plus adds a fresh, herby finish.

More low carb breakfasts you'll love:

Low Carb Asian Pork Stir Fry
Low Carb Asian Pork Stir Fry
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Low Carb Quick Italian Meatballs
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Low Carb Sausage Tray Bake

Low Carb Lemon Butter Cod

This rich, buttery cod is a real crowd-pleaser, perfect for entertaining when you want to impress (without spending all day in the kitchen!). 
5 from 2 votes
Prep Time 5 minutes
Cook Time 20 minutes
Meal Type Dinner
Cuisine Australian
Servings 2
Dietary FODMAP, Gluten-free, Keto

Ingredients
  

  • 2-3 cod fillets, about 300 g total
  • salt and pepper, to season
  • 2 lemons, 1 sliced into rounds, the other for zesting and juicing
  • ¼ cup butter, unsalted, melted
  • 1 tsp paprika, smoked
  • 1 punnet mini Roma or cherry tomatoes halved
  • 2 tbsp parsley, finely chopped

COOK MODE

Instructions
 

  • Preheat the oven to 200℃/392℉.
  • In a small bowl, combine the zest of 1 lemon, ¼ cup of lemon juice, butter and paprika. Pour half the mixture into the bottom of a baking dish, retaining the rest.
  • Season the cod with salt and pepper and place in the baking dish. Scatter the tomatoes around the fish, then pour over the remaining lemon butter mixture.
  • Place the baking dish in teh oven and bake for 17-20 minutes, depending on the thickness of the fillets.
  • Remove from the oven and serve garnished with chopped parsley, lemon slices and pan sauce.

Notes

Serve with a green salad, asparagus, zucchini or broad beans - whatever fresh veg is in season! 

Nutrition (per serve)

Net Carbs: 4.7gProtein: 36gFat: 24.6gFiber: 2.1gCalories: 384kcal

  • 5 stars
    This recipe is really simple and quick to make and delicious to eat. I made it with Ling finish as did not have cod. I added cauliflower rice which I had grated in the last 5 minutes which made it a full meal.

    • Thannks Mary, so glad you enjoyed the recipe! Using Ling fish and adding cauliflower rice sounds like a brilliant twist—such a great way to make it a hearty, complete meal. Love your creativity! 👏✨

    • Hi Lisa, thanks for sharing! We love the flexibility of this recipe, and your variations with different seafood sound delicious. Roasted zucchini, cauliflower and asparagus make a fantastic low carb pairing too. – DD Team

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